Not sure about film countdown..
BUT, as I'm working on a bigger release, I'm planning on adding 2 features for film-noir:
1) 'slight blinking' so it actually looks like it's being projected with one of them 'ancient' things (plus maybe a little shake every now and then)
2) level - the overall level of the effect, percentage - current effect as it is may be too strong on some images / too weak on others (depends on original colours). Would be even better if I added some sort of 'general colour scheme' detection and auto-adjust the right way by default (thinking further I could also check the content on top if any - paragraphs and such, to ensure right contrast, etc.)